Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quais funcionários do departamento de 'Encanamento' trabalharam em projetos que utilizaram energia geotérmica?
 ###Tabelas: 
CREATE TABLE Employees (EmployeeID INT, FirstName VARCHAR(50), LastName VARCHAR(50), Position VARCHAR(50), Department VARCHAR(50)); INSERT INTO Employees (EmployeeID, FirstName, LastName, Position, Department) VALUES (5, 'Mike', 'Johnson', 'Plumber', 'Plumbing'); CREATE TABLE ProjectEmployees (ProjectID INT, EmployeeID INT, PracticeID INT); INSERT INTO ProjectEmployees (ProjectID, EmployeeID, PracticeID) VALUES (6, 5, 3); CREATE TABLE SustainablePractices (PracticeID INT, PracticeName VARCHAR(50), Description VARCHAR(255), Department VARCHAR(50), Cost DECIMAL(10,2)); INSERT INTO SustainablePractices (PracticeID, PracticeName, Description, Department, Cost) VALUES (3, 'Geothermal Energy', 'Utilizing geothermal energy to power construction equipment.', 'Plumbing', 20000.00);
SELECT Employees.FirstName, Employees.LastName FROM Employees INNER JOIN ProjectEmployees ON Employees.EmployeeID = ProjectEmployees.EmployeeID INNER JOIN SustainablePractices ON ProjectEmployees.PracticeID = SustainablePractices.PracticeID WHERE Employees.Department = 'Plumbing' AND SustainablePractices.PracticeName = 'Geothermal Energy';